GRASER, H. The KGB (Russian Secret Police): Its composition, aims and methods. Scientia Militaria: South African Journal of Military Studies, [S. l.], v. 14, n. 2, p. 9–22, 2016. Disponível em: https://www.ajol.info/index.php/smsajms/article/view/143814. Acesso em: 8 nov. 2026.